Seno Medical Instruments, Inc. (Seno), the company pioneering the development of opto-acoustic technology as a new tool to improve the process of diagnosing breast cancer, announced today the presentation of case reports from the company's European MAESTRO Study, demonstrating the potential of its Imagio® opto-acoustic (OA) breast imaging system to provide physicians with vital information needed to determine whether a suspicious breast mass is cancerous or not, helping women avoid negative biopsy procedures.